Jaymi These sound like what I call "skid marks": matching bare oval spots on the inner thighs. They are common in plump ferrets and are caused by nothing more than the rubbing of ample thighs against the carpet. Nothing to worry about. Linda Iroff Oberlin, Ohio To help in raisin' funds for the Raisin Retreat, go here http://www.igive.com/html/ssi.cfm?CID=3585&MID=30146 [Posted in FML issue 2731]